Gaining apparatus



A ril 13, 1954 T. H. LEDDING ET AL 2,675,034

GAINING APPARATUS Filed Feb. 27, 1955 F I G. 3 INVENTOR.

THEODORE H. LEDDING WILBUR E. KAUTZ Patented Apr. 13, 1954 GAINING APPARATUS Theodore H. Ledding, Minneapolis, and Wilbur E. Kautz, Anoka, Minn, assignors to Minnesota and. Ontario Paper Company, Minneapolis,

Minn.

Application February 2'7, 1953, Serial No. 339,268

1 Claim. 1

It is the customary practice in preparing wooden poles for use in supporting electric, telephonic and other types of transmission wire to subject them to framing operations at the treating plant prior to treatment. The framing of poles before treating is much more feasible than is commonly supposed. Machine framing at the treating plant is far less expensive than hand framing on the job.

Preframing of poles prior to treatment is more economical and should materially increase the life of the pole under conditions conducive to decay since there is not danger of untreated wood being exposed through cuts made through the impregnating zone. Where poles are framed on the job it is extremely diificult to treat sufficiently to properly protect the poles.

In a gaining operation arm poles, particularly where it is desirable to have a slab gain made prior to treatment, it is the object of this invention to provide an efficient, economical machine for gaining poles at the treating plant prior to treatment.

Other and further objects of this invention and the advantages of the same will be pointed out hereinafter and indicated in th appended claim or will b obvious to one skilled in the art upon proper understanding of the present disclosures.

For the purpose of this application there has been elected to set forth one particular structure but it is to be understood that it is here presented for illustrative purposes only and is not to be accorded any interpretation such as might be effective of limiting what is claimed as the invention short of its tru and comprehensive scope in the art.

In the drawing forming a part of the application:

Figure 1 is a side elevational view with portions broken away showing a pole being slab gained;

Figure 2 is an end elevational view showing the improved apparatus; and

Figure 3 is a top plan view.

Referring to the drawings in detail, indicates a pole which is to be framed by the new apparatus. The new apparatus including a suitable motor 12 for driving the cutting head 14, the motor may be of any suitable type, preferably electric. The motor is suitably supported in the frame work on cross brackets I6, side rail members l8 and are fastened together by the brackets supporting the motor and brackets 22 and 24. Mounted on one of the side rail members is level 26. This is to indicate to the operators that the gaining is being done in the proper plane.

Rotatable rolls 28 and 3! are suitably supported by the frame member which includes longitudinally extending members 32 and vertically extending members 34. The rolls 28 and ar adjustable so that the gaining operation will always be level or substantially so. It is to be understood that the adjustability of these rolls 2E and 30 may take place in the rolls bearing support (not shown) or by providing the vertically extending members 34 with apertures 36 and suitable securing means 38 which extend through the apertures.

In operation the depth of the gain is determined and the rolls 2B and 30 set in proper relation to the depth of the gain to be out, for example, as shown in Figure 1 roll 28 is adjusted to a higher plane than roll 30 which travels upon the bottom of the gaining already out. To protect the workers guard plates 40 are positioned on the longitudinal sides of th cutting unit. These guard plates extended to a plane below the bottom of the cutting unit. This revents any wood cut from being thrown against the operators. There are provided support bars 42 and 44 which prevent the cutter Hi from striking the ground when the apparatus rests thereon. The corner support bars are provided with feet 4G which are in a plane below the bottom of the guard plate.

What is claimed is:

A pole gaining apparatus comprising spacedapart side rails, spaced-apart brackets attached to the rails, a motor carried by the brackets, a vertically extending cutter operatively connected to the motor, adjustable supporting rollers mounted transversely of the frame and on opposite sides of the motor, guard plates connected to the side rails on opposite sides of the motor and extending to a plane lower than the bottom of the cutter and corner support bars connected to the side rails and having feet on their ends, said feet in a plane below the bottom of the guard plates.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 890,312 Stoll June 9, 1908 1,044,011 Buchanan Nov. 12, 1912 1,224,943 Lux May 8, 1917 1,823,375 Potter et al Sept. 15, 1931 1,919,249 Oliver July 25, 1933 FOREIGN PATENTS Number Country Date 341,974 Germany Oct. 11, 1921 

